McNair N L, Meador K J
Department of Neurology, Medical College of Georgia, Augusta, Georgia 30912-3200.
Mov Disord. 1992 Oct;7(4):345-7. doi: 10.1002/mds.870070408.
Brain-dead patients may exhibit gross spontaneous and reflex movements (e.g., Babinski sign, stereotypic flexion of one or more limbs, and Lazarus sign). We report three brain-dead patients who had unusual complex sequential movements of the toes. Undulating toe flexion was elicited by noxious stimuli to the lower extremities, and consisted of initial plantar flexion of the great toe, followed by sequential brief plantar flexion of the second, third, fourth, and fifth toes. The undulating toe flexion sign differs from previously described responses characterized by plantar flexion of the toes (e.g., Rosselimo's sign and the Mendel-Bechterew sign) in that it consists of complex patterned sequential movements of the digits rather than brief simultaneous flexion and/or fanning of the toes. Neurologists should be aware of this unusual finding, which should not preclude the diagnosis of brain death.
脑死亡患者可能会出现明显的自发和反射性运动（如巴宾斯基征、一个或多个肢体的刻板性屈曲以及拉撒路征）。我们报告了三名脑死亡患者，他们出现了不寻常的脚趾复杂连续性运动。对下肢施加有害刺激可引发脚趾波动样屈曲，其表现为大脚趾先跖屈，随后第二、第三、第四和第五脚趾依次短暂跖屈。脚趾波动样屈曲征与先前描述的以脚趾跖屈为特征的反应（如罗塞利莫征和门德尔 - 别赫捷列夫征）不同，因为它是由数字的复杂模式化连续运动组成，而不是脚趾的短暂同时屈曲和/或展开。神经科医生应了解这一不寻常的发现，这不应排除脑死亡的诊断。
